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    router<span class="token punctuation">,</span>
    store<span class="token punctuation">,</span>
    i18n<span class="token punctuation">,</span>
    <span class="token function-variable function">render</span><span class="token operator">:</span> <span class="token parameter">h</span> <span class="token operator">=&gt;</span> <span class="token function">h</span><span class="token punctuation">(</span>App<span class="token punctuation">)</span><span class="token punctuation">,</span>
    <span class="token function">beforeCreate</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
        <span class="token class-name">Vue</span><span class="token punctuation">.</span>prototype<span class="token punctuation">.</span>eventBus <span class="token operator">=</span> <span class="token keyword">this</span><span class="token punctuation">;</span>
    <span class="token punctuation">}</span><span class="token punctuation">,</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">$mount</span><span class="token punctuation">(</span><span class="token string">'#app'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre></div><h3 id="注册ebus事件"><a href="#注册ebus事件" class="header-anchor">#</a> 注册Ebus事件</h3> <p>EventBus的出现本身就是为了解决不同组件之间的通信问题，所以我们的注册事件和触发事件需要在不同的地方，如果是普通的父子组件之间的通信的话就没有必要用到Ebus的功能了</p> <p>我们在flow页面对<code>flow-refresh-id</code>的事件进行注册，在这里可以看出笔者注册的是动态的一个事件，通过动态添加事件的方法可以区分出不同id之间调用相同事件的准确性，一次注册写法可以注册出多个监听事件，这里注册的是一个创建节点的事件，具体的功能这里就不做讲解了。</p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token comment">//flow.vue</span>
<span class="token keyword">let</span> vm <span class="token operator">=</span> <span class="token keyword">this</span>
vm<span class="token punctuation">.</span>eventBus<span class="token punctuation">.</span><span class="token function">$on</span><span class="token punctuation">(</span><span class="token template-string"><span class="token template-punctuation string">`</span><span class="token string">flow-refresh-</span><span class="token interpolation"><span class="token interpolation-punctuation punctuation">${</span>vm<span class="token punctuation">.</span>obj<span class="token punctuation">.</span>id<span class="token interpolation-punctuation punctuation">}</span></span><span class="token template-punctuation string">`</span></span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token parameter">flowNewNodeData</span><span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    vm<span class="token punctuation">.</span><span class="token function">createNewNode</span><span class="token punctuation">(</span>flowNewNodeData<span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre></div><h3 id="触发ebus事件"><a href="#触发ebus事件" class="header-anchor">#</a> 触发Ebus事件</h3> <p>在flow.vue页面注册好事件之后我们就可以在其他页面调用注册的事件了，通过<code>vm.eventBus.$emit</code>的方法在dataD.vue页面来触发已经注册好的事件。</p> <div class="language-js extra-class"><pre class="language-js"><code><span class="token comment">//dataD.vue</span>
<span class="token keyword">let</span> vm <span class="token operator">=</span> <span class="token keyword">this</span>
 vm<span class="token punctuation">.</span>eventBus<span class="token punctuation">.</span><span class="token function">$emit</span><span class="token punctuation">(</span>
    <span class="token template-string"><span class="token template-punctuation string">`</span><span class="token string">flow-refresh-</span><span class="token interpolation"><span class="token interpolation-punctuation punctuation">${</span><span class="token keyword">this</span><span class="token punctuation">.</span>menuActive<span class="token punctuation">.</span>businessId<span class="token interpolation-punctuation punctuation">}</span></span><span class="token template-punctuation string">`</span></span><span class="token punctuation">,</span>
    vm<span class="token punctuation">.</span>flowNewNodeData
<span class="token punctuation">)</span><span class="token punctuation">;</span>
</code></pre></div><p>本文只是简单的记录一下实现Ebus的一整个实现过程，从全局注册Ebus插件，再到页面注册监听事件，另外一个页面触发其他页面注册的实现。</p></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">上次更新:</span> <span class="time">2023-01-04 10:56:12</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
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